Publications Details
Photocatalytic Material Surfaces for SARS-CoV-2 Virus Inactivation
Negrete, Oscar N.; Bradfute, Steven; Larson, Steven R.; Sinha, Anupama S.; Coombes, Kenneth R.; Goeke, Ronald S.; Keenan, Lisa A.; Duay, Jonathon W.; Van Heukelom, Michael V.; Meserole, Stephen M.; Jacobs-Gedrim, Robin B.
Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) can be spread through close contact or through fomite mediated transmission. This study details the fabrication and analysis of a photocatalyst surface which can rapidly inactivate SARS-COV-2 to limit spread of the virus by fomite mediated transmission. The surface being developed at Sandia for this purpose is a minimally hazardous Ag-Ti0 2 nanomaterial which is engineered to have high photocatalytic activity. Initial results at Sandia California in a BSL-2 safe surrogate virus- Vesicular Stomatitis Virus (VSV) show a significant difference between the photocatalyst material under exposure to visible light than controls. Additionally, UV-A light (365 nm) was found to eliminate SARS-COV-2 after 9 hours on all tested surfaces with irradiance of 15 mW/cm 2 equivalent to direct circumsolar irradiance.